On some V6 websites we have started to implement the Heading 5 and Heading 6 options to format links and make them neater. 

If you have these on your website and want to know how to add them just follow these steps:

1. Write the text you want to be in the box.
2. highlight it by clicking at the start of the text and while holding down the mouse button dragging your cursor over the desired text.
3. Let go and go up to "Headings" 
4. Select Heading 5
5. Click the thumbs up to save your changes.
6. If that wasn't the correct style, click on the cog and follow steps 2 and 3 but then choose Heading 6.